20038305

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{199}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 37756800

約数和(自身を除く): 17718495

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 137, 147, 199, 245, 411, 597, 685, 735, 959, 995, 1393, 2055, 2877, 2985, 4179, 4795, 6713, 6965, 9751, 14385, 20139, 20895, 27263, 29253, 33565, 48755, 81789, 100695, 136315, 146265, 190841, 408945, 572523, 954205, 1335887, 2862615, 4007661, 6679435, 20038305]

約数ペア:

[(1, 20038305), (3, 6679435), (5, 4007661), (7, 2862615), (15, 1335887), (21, 954205), (35, 572523), (49, 408945), (105, 190841), (137, 146265), (147, 136315), (199, 100695), (245, 81789), (411, 48755), (597, 33565), (685, 29253), (735, 27263), (959, 20895), (995, 20139), (1393, 14385), (2055, 9751), (2877, 6965), (2985, 6713), (4179, 4795)]